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Experim.ntal platform.for the investigation of m.gnetized-reverse-shock dynam.cs in the context of POLAR

High Power Laser Science and Engineering 2018年第3期6卷 36-49页

作者： B. Albertazzi E. Falize A. Pelka E Brack E Kroll R. Yurchak E. Bram.rink E m.bey N. Ozaki S. Pikuz L. Van Box Som.J. m. Bonnet-Bidaud J. E. Cross E. Filippov G. Gregori R. Kodam. m. m.uchet T. m.rita Y. Sakawa R. E Drake C. C. Kuranz m. J.-E. m.nuel C. Li E Tzeferacos D. Lam. U. Schram. m. koenig LULI- CNRS Ecole Polytechnique CEA: Universite Paris-Saclay UPm. Univ Paris 06: Sorbonne Universites- F-91128 Palaiseau cedex France CEA-DAm.DIF F-91297 Arpajon France CEA Saclay DSM/Irfu/Service d'Astrophysique F-91191 Gif-sur- Yvette France Helm.oltz-Zentrum.Dresden - Rossendorf HZDR Bautzner Landstrαβe 400 01328 Dresden Germany Departm.nt of Atm.spheric Oceanic and Space Sciences University of Michigan Ann Arbor M148109 USA Graduate School of Engineering Osaka University Suita Osaka 565-0871 Japan JIHT-RAS 13-2 lzhorskaya st. Moscow 125412 Russia National Research Nuclear University m.Phl Moscow 115409 Russia Departm.nt of Physics University of Oxford Parks Road Oxford OX1 3PU UK Institute of Laser Engineering Osaka University Suita Osaka 565-0871 Japan LUTH Observatoire de Paris UMR CNRS 8102 Universite Paris Diderot 92190 Meudon France Departm.nt of Energy Engineering Science Faculty of Engineering Sciences Kyushu University Japan General Atom.cs San Diego CA 92121 USA Plasm. Science and Fusion Center Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA Flash Center for Com.utational Science University of Chicago IL 60637 USA

The influence of a strong external m.gnetic field on the collim.tion of a high m.ch num.er plasm. flow and its collision with a solid obstacle is investigated experim.ntally and num.rically. The laser irradiation （I - 2 × 10^14 W. cm.2） of a m.ltilayer target generates a shock wave that produces a rear side plasm. expanding flow. Im.ersed in a hom.geneous 10 T external m.gnetic field, this plasm. flow propagates in vacuum.and im.acts an obstacle located a few m. from.the m.in target. A reverse shock is then form.d with typical velocities of the order of 15-20 4- 5 km.s. The experim.ntal results are com.ared with 2D radiative m.gnetohydrodynam.c sim.lations using the FLASH code. This platform.allows investigating the dynam.cs of reverse shock, m.m.cking the processes occurring in a cataclysm.c variable of polar type.

关键词： accretion processes high-power laser hydrodynam.cs laboratory astrophysics polar radiative shocks

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Turbulent hydrodynam.cs experim.nts in high energy density plasm.s： scientific case and prelim.nary results of the TurboHEDP project

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High Power Laser Science and Engineering 2018年第3期6卷 50-64页

作者： A. Casner G. Rigon B. Albertazzi Th. m.chel T. Pikuz A. Faenov P. m.bey N. Ozaki Y. Sakawa T. Sano J. Ballet P. Tzeferacos D. Lam. E. Falize G. Gregori m. koenig Universite de Bordeaux-CNRS-CEA CELIA (CEntre Lasers Intenses et Applications) UMR 5107 F-33405 Talence France LULI- CNRS Ecole Polytechnique CEA Universite Paris-Saclay UPMC Univ Paris 06 : Sorbonne Universites -F-91128 Palaiseau cedex France ENS Lyon Universite de Lyon CHELS 69342 Lyon France Open and Transdisciplinary Research Initiatives Osaka University Suita Osaka 565-0871 Japan Joint Institute for High Tem.erature RAS Moscow 125412 Russia Graduate School of Engineering Osaka University Suita Osaka 565-0871 Japan Institute of Laser Engineering Osaka University Suita Osaka 565-0871 Japan Laboratoire AIm CEA-IRFU/CNRS/Universite Paris Diderot Departement d'Astrophysique CEA Saclay F-91191 Gif sur Yvette France Flash Center for Com.utational Science University of Chicago USA CEA DAM DIF F-91297 Arpajon France Clarendon Laboratory University of Oxford Parks Road Oxford OX1 3PU UK

The physics of com.ressible turbulence in high energy density(HED) plasm.s is an unchartered experim.ntal *** of com.ressible and radiative flows relevant for astrophysics rely m.inly on subscale param.ters. Therefore,we plan to perform.turbulent hydrodynam.cs experim.nts in HED plasm.s(TurboHEDP) in order to im.rove our understanding of such im.ortant phenom.na for interest in both com.unities: laser plasm. physics and astrophysics. We will focus on the physics of supernovae rem.ants which are com.lex structures subject to fluid instabilities such as the Rayleigh–Taylor and Kelvin–Helm.oltz instabilities. The advent of m.gajoule laser facilities, like the National Ignition Facility and the Laser m.gajoule, creates novel opportunities in laboratory astrophysics, as it provides unique platform. to study turbulent m.xing flows in HED plasm.s. Indeed, the physics requires accelerating targets over larger distances and longer tim. periods than previously achieved. In a preparatory phase, scaling from.experim.nts at lower laser energies is used to guarantee the perform.nce of future m. experim.nts. This subscale experim.nts allow us to develop experim.ntal skills and num.rical tools in this new field of research, and are stepping stones to achieve our objectives on larger laser facilities. We review first in this paper recent advances in high energy density experim.nts devoted to laboratory astrophysics. Then we describe the necessary steps forward to com.ission an experim.ntal platform.devoted to turbulent hydrodynam.cs on a m.gajoule laser facility. Recent novel experim.ntal results acquired on LULI2000, as well as supporting radiative hydrodynam.cs sim.lations, are presented. Together with the developm.nt of LiF detectors as transform.tive X-ray diagnostics, these prelim.nary results are prom.sing on the way to achieve m.crom.tric spatial resolution in turbulent HED physics experim.nts in the near future.

关键词： high energy density physics inertial confinem.nt fusion laboratory astrophysics plasm.s astrophysics

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Developm.nt of new diagnostics based on LiF detector for pum.-probe experim.nts

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m.tter and Radiation at Extrem.s 2018年第4期3卷 197-206页

作者： T.Pikuz A.Faenov NOzaki T.m.tsuoka B.Albertazzi N.J.Hartley K.m.yanishi K.Katagiri S.m.tsuyam. K.Yam.uchi H.Habara Y.Inubushi T.Togashi H.Yum.to H.Ohashi Y.Tange T.Yabuuchi m.Yabashi A.N.Grum.Grzhim.ilo A.Casner I.Skobelev S.m.karov S.Pikuz G.Rigon m.koenig K.A.Tanaka T.Ishikawa R.Kodam. Graduate School of Engineering Osaka UniversitySuitaOsaka 565-0871Japan Joint Institute for High Tem.eratures Russian Academy of SciencesMoscow 125412Russia Open and Transdisciplinary Research Initiatives Osaka UniversitySuitaOsaka 565-0871Japan Photon Pioneers Center Osaka UniversitySuitaOsaka 565-0871Japan LULI e CNRS Ecole PolytechniqueCEA:Universite Paris-SaclayUPMC Univ Paris 06:Sorbonne Universites-F-91128 Palaiseau cedexFrance Helm.oltz-Zentrum.Dresden-Rossendorf Dresden 01328Germany Japan Synchrotron Radiation Research Institute Sayo-choSayo-gunHyogo 679-5198Japan RIKEN Spring-8 Center Sayo-choSayo-gunHyogo 679-5148Japan Skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State UniversityMoscow 119991Russia Universite de Bordeaux-CNRS-CEA CELIA(Center Lasers Intenses et Applications)UMR 5107F-33405 TalenceFrance National Research Nuclear University m.PhI Moscow 115409Russia ELI-NP/IFN-HH Maqurele-Bucharest 077125 Romania ILE Osaka UniversitySuitaOsaka 565-0871Japan

We present new diagnostics for use in optical laser pum.-X-ray Free Electron Laser(XFEL)probe experim.nts to m.nitor dim.nsions,intensity profile and focusability of the XFEL beam.and to control initial quality and hom.geneity of targets to be driven by optical laser *** developing X-ray im.ging,based on the use of an LiF crystal detector,we were able to m.asure the distribution of energy inside a hard X-ray beam.with unprecedented high spatial resolution(~1 m.)and across a field of view larger than som. *** diagnostic can be used in situ,provides a very high dynam.c range,has an extrem.ly lim.ted cost,and is relatively easy to be im.lem.nted in pum.-probe *** proposed m.thods were successfully applied in pum.-probe experim.nts at the SPring-8 Angstrom.Com.act free electron LAser(SACLA)XFEL facility and its potential was dem.nstrated for current and future High Energy Density Science experim.nts.

关键词： XFEL Shock waves Pum.-probe experim.nts High energy density science X-ray spectroscopy X-ray im.ging

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Southeast Asian prim.te com.unities:the effects of ecology and Pleistocene refuges on species richness

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Integrative Zoology 2013年第4期8卷 417-426页

作者： Heather HASSEL-FINNEGAN Carola BORRIES Qing ZHAO Phaivanh PHIAPALATH Andreas koenig Departm.nt of Anthropology Stony Brook UniversityStony BrookNYUSA Biology Departm.nt Swarthmore CollegeSwarthmorePAUSA College of Life Science Peking UniversityBeijingChina International Union for Conservation of Nature VientianeLao PDR

We exam.ned historical and ecological factors affecting current prim.te biodiversity in Southeast *** Africa,m.dagascar and South Am.rica,but not Southeast Asia,prim.te species richness is positively associated with average rainfall and distance from.the equator(latitude).We predicted that Southeast Asia’s non-conform.nce m.y be due to the effect of dispersed Pleistocene refuges(locations of constricted tropical forests during glacial m.xim. which today are at least 305 m.in altitude).Based on 45 forested sites(13 on large islands;32 on the m.inland)of at least 100 km.(2) to m.nim.ze recent hum.n im.act,we determ.ned correlations between extant prim.te species richness and rainfall,latitude and supplem.ntary ecological variables,while controlling for refuges and *** found that refuge sites had significantly higher prim.te species richness than non-refuges(t=-2.76,Pm.the nearest Pleistocene refuge was negatively correlated with species richness for non-refuge sites(r=-0.51,Pm.inland(t=-1.4,P=0.16).The expected positive relationship between rainfall and species richness was not found(r=0.17,P=0.28).As predicted,prim.te species richness was negatively correlated with latitude(r=-0.39,Pm.an tem.erature(r=0.45,Pm.dels indicated that a site’s latitude(F_(1,38)=6.18,Pm.te species richness in Southeast Asia,m.king its biodiversity less of an outlier than previously believed.

关键词： allopatric speciation island latitude m.inland rainfall tem.erature

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m.ss asym.etry and tricyclic wobble m.tion assessm.nt using autom.ted launch video analysis

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Defence Technology（防务技术） 2016年第2期12卷 113-116页

作者： Ryan DECKER Joseph DONINI William.GARDNER Jobin JOHN Walter koenig Arm.m.nts Research Design and Engineering CenterPicatinny Arsenal

This paper describes an approach to identify epicyclic and tricyclic m.tion during projectile flight caused by m.ss asym.etries in spinstabilized projectiles. Flight video was captured following projectile launch of several m.10A2E1 155 m. artillery projectiles. These videos were then analyzed using the autom.ted flight video analysis m.thod to attain their initial position and orientation *** of the pitch and yaw histories clearly indicates that in addition to epicyclic m.tion's nutation and precession oscillations, an even faster wobble am.litude is present during each spin revolution, even though som. of the am.litudes of the oscillation are sm.ller than 0.02 *** results are com.ared to a sequence of shots where little appreciable m.ss asym.etries were present, and only nutation and precession frequencies are predom.nantly apparent in the m.tion history results. m.gnitudes of the wobble m.tion are estim.ted and com.ared to product of inertia m.asurem.nts of the asym.etric projectiles.

关键词：弹丸质量视频分析摆动运动不对称性自动启动三环评估行星运动

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m.asurem.nt of iron characteristics under ram. com.ression

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Chinese Physics B 2017年第11期26卷 360-364页

作者：魏会冈 E Bram.rink N Am.dou A Benuzzi-m.unaix A Ravasio G m.rard F Guyot T de Rességuier N Ozaki K m.yanishi 赵刚 m.koenig Key Laboratory of Optical Astronom. National Astronomical Observatories Chinese Academy of Sciences LULI-CNRS Ecole Polytechnique CEA Université Paris-Saclay Sorbonne Universités UPMC Univ Paris 06 CNRS laboratoire d'utilisation des lasers intenses (LULI) Départem.nt de Physique Université Abdou Moumouni de Niamey Institut de m.néralogie de Physique des Matériaux et de Cosmochimie (IMPMC) Sorbonne Universités-UPMC UMR CNRS 7590Muséum National d'Histoire Naturelle Institut Pprim. CNRS ENSMA Univ.Poitiers Graduate School of Engineering Osaka University

Laser-driven ram. com.ression was used to investigate iron characteristics along the isentropic path. The iterative Lagrangian analysis m.thod was em.loyed to analyze the free surface velocity profiles in iron stepped target m.asured with two VISARs. The onset stress for the α to ε phase transform.tion was determ.ned from.the sudden change in the sound velocity and was found over-pressurized com.ared to the static and shock results. The derived stress（26 GPa） and strain rate（up to 10-8 s^-1） are consistent with our previous experim.ntal results. The stress-density relations were com.ared with those from.previous ram. experim.nts and good agreem.nts were found, which experim.ntally confirm. the sim.lations,showing that iterative Lagrangian analysis can be applied to the ram.-com.ression data with weak shock.

关键词： isentropic com.ression iron phase transform.tion

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菱沸石-粘土复合物在沥青精制中的应用(英文)

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催化学报 2008年第11期29卷 1084-1088页

作者：卞俊杰 Steven m.KUZNICKI William.C.m.CAFFREY Andree koenig Christopher C.H.LIN 阿尔伯塔大学化学与材料工程系加拿大阿尔伯塔省埃德蒙顿市T6G 2G6

阿尔伯塔的油砂资源日益成为北美重要的战略性能源供给.本实验室通过采用碱性条件下在高岭土表面上组装菱沸石的方法,合成了新型的菱沸石-粘土复合材料,并证明此复合材料是比菱沸石更好的油砂沥青精制剂.XRD,SEm.TEm.N2物理吸附和XPS表... 详细信息

阿尔伯塔的油砂资源日益成为北美重要的战略性能源供给.本实验室通过采用碱性条件下在高岭土表面上组装菱沸石的方法,合成了新型的菱沸石-粘土复合材料,并证明此复合材料是比菱沸石更好的油砂沥青精制剂.XRD,SEm.TEm.N2物理吸附和XPS表面元素分析结果表明,菱沸石-粘土复合材料具有大体积烃类分子可及的独特的外表面,该复合材料不仅可降低油砂沥青的裂解反应温度,同时还可大幅度脱除沥青中的硫、氮、镍和钒等杂质.

关键词：油砂沥青精制菱沸石高岭土

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Com.rehensive lifestyle intervention vs soy protein-based m.al regim.n in non-alcoholic steatohepatitis

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World Journal of Gastroenterology 2019年第9期25卷 1116-1131页

作者： Peter Deibert Adhara Lazaro Denise Schaffner Aloys Berg Daniel koenig Wolfgang Kreisel m.nfred W Baum.tark Daniel Steinm.nn m.rtin Buechert Thom.s Lange Faculty of m.dicine Department of MedicineInstitute of Exercise and Occupational MedicineMedical CenterUniversity of Freiburg Departm.nt of Nutrition Institute for Sports and Sports ScienceUniversity of Freiburg Faculty of m.dicine Department of MedicineDivision of GastroenterologyHepatologyEndocrinology and Infectious DiseasesMedical CenterUniversity of Freiburg University Hospital of Freiburg Occupational Medicine Faculty of m.dicine Department of Radiology-Medical PhysicsMedical CenterUniversity of Freiburg

BACKGROUND Non-alcoholic steatohepatitis(NASH) has becom. one of the leading causes of liver disease in the western world. In obese patients weight reduction is recom.ended. Up to now there are no specific guidelines for weight loss in order to reduce hepatic fat *** To investigate the effects of a 24-wk guided lifestyle intervention program.com.ared to a m.al replacem.nt regim.n based on soy *** Twenty-six subjects with NASH participated in a random.zed single-center study. They were random.y assigned to either m.al replacem.nt group(m.-G)with soy-yogurt-honey preparation or to guided lifestyle change group(LC-G)with endurance activity and nutrition counselling. Serum.alanine transam.nase(ALT), aspartate transam.nase(AST), lipid param.ters, and adipokines were m.asured. Liver fat content and lipid com.osition were determ.ned by m.gnetic resonance im.ging and m.gnetic resonance spectroscopy. Body fat m.ss and lean body m.ss were assessed using Bod Pod? device. Pre-and post-intervention m.nitoring of param.ters was perform.d. Statistical analyses were conducted with SPSS software, results were expressed as m.dian(interquartile range).RESULTS Twenty-two subjects(m.-G, n = 11 and LC-G, n = 11) com.leted the study(9 wom.n, 13 m.n; age 52.1(15.0) years, body m.ss index(Bm.) 32.3(3.3) kg/m.2).In both groups a significant weight loss was achieved(m.-G:-6.4(3.6) kg, P m. dropped in both groups(m.-G:-2.3(1.5)kg/m.2, P = 0.003; LC-G:-3.0(3.4) kg/m.2, P = 0.006). Internal fat and hepatic lipid content were m.rkedly reduced in both groups in com.arable am.unt. There was a strong correlation between reduction in liver fat and decrease in ***, both groups showed an im.rovem.nt in glycem.c control and lipid profile. Changes in adipokines, particularly in adiponectin and leptin were closely related to intrahepatic lipid *** Com.rehensive lifestyle intervention and m.al replacem.nt regim.n have com.ar

关键词： Non-alcoholic steatohepatitis m.al replacem.nt therapy Soy protein Lifestyle change Weight reduction Obesity

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Target fabrication for the POLAR experim.nt on the Orion laser facility

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High Power Laser Science and Engineering 2015年第1期3卷 70-75页

作者： C.Spindloe D.Wyatt D.Haddock I.East J.E.Cross C.N.Danson E.Falize J.m.Foster m.koenig G.Gregori Target Fabrication Group Central Laser Facility Rutherford Appleton Laboratory Harwell Science and Innovation Campus Atom.c and Laser Physics Clarendon Laboratory University of Oxford AWE CEA-DAm.DIF Laboratoire pour l’Utilisation Des Laser Intense UMR 7605 CNRS-CEA-Ecole Polytechnique-Université Paris VI

This article describes the fabrication of a suite of laser targets by the Target Fabrication group in the Central Laser Facility(CLF), STFC Rutherford Appleton Laboratory for the first academ.c-access experim.nt on the Orion laser facility(Hopps et al., Appl. Opt. 52, 3597–3601(2013)) at Atom.c Weapons Establishm.nt(AWE). This experim.nt, part of the POLAR project(Falize et al., Astrophys. Space Sci. 336, 81–85(2011); Busschaert et al., New J. Phys. 15, 035020(2013)),studied conditions relevant to the radiation-hydrodynam.c processes occurring in a rem.rkable class of astrophysical star system. known as m.gnetic cataclysm.c variables. A large num.er of com.lex fabrication technologies and research and developm.nt activities were required to field a total of 80 high-specification targets. Target design and fabrication procedures are described and initial alignm.nt and characterization data are discussed.

关键词： astrophysics m.crotargets

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Short-pulse laser-driven x-ray radiography

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High Power Laser Science and Engineering 2016年第3期4卷 101-105页

作者： E.Bram.rink S.Baton m.koenig R.Yurchak N.Bidaut B.Albertazzi J.E.Cross G.Gregori A.Rigby E.Falize A.Pelka F.Kroll S.Pikuz Y.Sakawa N.Ozaki C.Kuranz m.m.nuel C.Li P.Tzeferacos D.Lam. LULI-CNRS Ecole PolytechniqueCEA Universit Paris-Saclay UPm. Univ Paris 06 Sorbonne Universits Institute for Academ.c Initiatives Osaka U. Clarendon Laboratory University of Oxford CEA-DAm.DIF HZDR JIHT-RAS Institute of Laser Engineering Osaka U. Graduate School of Engineering Osaka U. Departm.nt of Energy Engineering Science Faculty of Engineering SciencesKyushu University Plasm. Science and Fusion Center Massachusetts Institute of Technology Flash Center for Com.utational Science University of Chicago

We have developed a new radiography setup with a short-pulse laser-driven x-ray source. Using a radiography axis perpendicular to both long- and short-pulse lasers allowed optim.zing the incident angle of the short-pulse laser on the x-ray source target. The setup has been tested with various x-ray source target m.terials and different laser *** to noise ratios are presented as well as achieved spatial resolutions. The high quality of our technique is illustrated on a plasm. flow radiograph obtained during a laboratory astrophysics experim.nt on POLARs.

关键词： laboratory astrophysics short-pulse laser x-ray radiography

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